Battinburg Buttercream Icing
- Cut the butter into chucks and place into a large mixing bowl. Add 4 cups of the 10xx sugar; then add the milk and vanilla straight away.
- On medium speed with an electric mixer, beat until smooth and creamy, about 3 to 5 minutes. Gradually add the remaining sugar, 1 cup at a time, beating well after each addition (about 2 minutes each), until the icing is thick and has a spreading consistency. You may not need to add all of the 10xx sugar. If desired, add a few drops of food coloring and mix thoroughly.